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Type of coolant?

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHType of coolant?

Leading reported evidence

Use zerex a40 in mine

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Unsuccessful attempts
1
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I used Zerex A40 in mine when I rebuilt it.

Type of coolant?
Frequently discussed work

Use airlift system

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Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

As mentioned above, I flushed the system and refilled with 50/50 coolant and distilled water using an Airlift system.

Type of coolant?
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Leading evidence: 'Use zerex a40 in mine' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use airlift system' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 8 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Use airlift system

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

As mentioned above, I flushed the system and refilled with 50/50 coolant and distilled water using an Airlift system.

Type of coolant?

Use surfactant

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I also use a surfactant.

Type of coolant?
Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Use airlift system

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

As mentioned above, I flushed the system and refilled with 50/50 coolant and distilled water using an Airlift system.

Type of coolant?

Use surfactant

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I also use a surfactant.

Type of coolant?

Use zerex a40 in mine

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I used Zerex A40 in mine when I rebuilt it.

Type of coolant?
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T192637Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all. What coolant would you recommend and can I use it with our without dilution. I'm in the Northeast and drive in anything from 25 degrees to 95 degrees or so. Thanks very much.

POST 2Original post

Porsche coolant, or red Pentosin coolant (mixed one bottle to make one gallon of coolant)

POST 3Original post

If you have VW or Audi dealer close they also have the oem.

POST 4Original post

Porsche OEM coolant only mixed 50/50 with distilled water. Do not mix types of coolant! If you are unsure what's in there, do a full coolant flush.

POST 6Original post

Most NAPA and Advance Auto carry the Pentosin and you can get distilled water at your local CVS or Walgreens. Do not use tap water. I also use a surfactant. It simply makes the coolant "wetter" so it coats surfaces better. I think there are Brand X of these at auto parts stores. I use Joe Gibbs Racing Driven CSP Coolant System Protector (12oz Bottle) 50030 (lnengineering.com) from our sponsors.

POST 7Original post

I used Zerex A40 in mine when I rebuilt it. It has the same chemistry as Porsche coolant and is working well. It�s lower cost and available anywhere. As mentioned above, I flushed the system and refilled with 50/50 coolant and distilled water using an Airlift system. It cools better than it was before I rebuilt the motor. The PO had pit green coolant in the system.

POST 8Original post

Quotes source post: 19127438

Are you sure it wasn't Zerex G40?

This is a source reference. Confirm exact model applicability in the original material.